Results 1 to 4 of 4

Thread: Jeep WJ Speedo Calibration

  1. #1
    Tuner in Training
    Join Date
    May 2011
    Posts
    11

    Jeep WJ Speedo Calibration

    Hi,

    Has anyone figured out how to calibrate a Jeep WJ speedometer?
    Under Speedo -> Calibration there are two values: Factor Max and Factor Min. However, those do not seem to have any affect at all.

    WJ Stock.hpt

  2. #2
    04 jeep wj 4.7 ho I'm looking for the same answer if anyone could help.

  3. #3
    Tuner in Training
    Join Date
    Mar 2021
    Location
    Michigan
    Posts
    42
    Any updates? I have a few WJ's in the shop that I'm sure customers would like their speedo corrected. I just bought the mpvi2 but havent got it yet to mess around with.

  4. #4
    Tuner in Training
    Join Date
    May 2011
    Posts
    11
    I haven't figured it quite out yet, we just installed a speedo converter instead.
    However, while we installed the speedo converter we saw that if it's connected at the dash it will not work. If it is connected at the PCM it works. The speedo signal goes from the ABS module and splits to the dashboard and the PCM. Then there's another signal to the dash from the PCM. So it might be possible to cut the wire from the ABS module to the dash and then the programming works?